Author: Ralph Leo ClaryPublisher:
ISBN:
Category :
Languages : en
Pages : 130
Book Description
The Measurement of Cross Sections of (alpha, Neutron) and (alpha, Two-neutron) Reactions
Author: Ralph Leo ClaryThe Total Cross Sections of Light Elements for Neutrons from Alpha-particle Induced Reactions
Author: Robert Louis BeckerPublisher:
ISBN:
Category : Neutrons
Languages : en
Pages : 108
Book Description
Cross-section Measurement of the Thermal Neutron (n,[alpha]) Reaction in S 32 and S 33
![Cross-section Measurement of the Thermal Neutron (n,[alpha]) Reaction in S 32 and S 33 PDF](https://books.google.com/books/content/images/frontcover/bRuKGwAACAAJ?fife=w80-h100)
Author: Jay Mark HarrisDifferential Cross Section Measurements for the 6Li(n, T)alpha Reaction in the Few MeV Region
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
New measured differential cross sections of tritons and alpha particles following the 6Li(n, t)[alpha] reaction are reported for incident neutron energies between 0.2 and approximately 20 MeV. The neutrons were produced by spallation at the WNR facility at the Los Alamos Neutron Science CEnter (LANSCE), with the incident neutron energy determined by the time-of-flight method. Four E-[Delta]E telescopes were used at eight laboratory angles. These data have been incorporated into a prior R-matrix fit for the compound 7Li system, and result in an (n, t) reaction cross section that is 4% to 10% higher than previous evaluations in the 1-3 MeV incident neutron energy region.
Neutron Cross Sections and Technology
Author: David T. GoldmanPublisher:
ISBN:
Category : Neutron cross sections
Languages : en
Pages : 674
Book Description
The ([alpha], N) Cross Section of Boron
![The ([alpha], N) Cross Section of Boron PDF](https://books.google.com/books/content/images/frontcover/itGdeu6sWGEC?fife=w80-h100)
Author: Raymond L. WalkerPublisher:
ISBN:
Category : Boron
Languages : en
Pages : 14
Book Description
Nuclear Cross Sections for 95-Mev Neutrons
Author: James DeJurenPublisher:
ISBN:
Category : Bismuth
Languages : en
Pages : 24
Book Description
The total cross sections of twelve different elements were measured using the neutron beam from the 184-in. cyclotron, operating with deuterons. Bismuth fission ionization chambers were employed as both monitor and detector in conventional 'good geometry' attenuation measurements in the neutron flux emerging from the 3-in. diameter collimating port in the 10-ft-thick concrete shielding. The mean energy of detection of the neutrons in this experiment is estimated to be 95 Mev. Measurements were also made with a monitor and detector placed inside the concrete shielding where an intense neutron flux over a large area could be obtained. Attenuators of four different elements were placed in front of the detector in a 'poor geometry' arrangement so that attenuation was due essentially to inelastic collisions which degrade the neutron energy below the fission threshold. A second detector was placed outside the concrete shielding In the collimated neutron beam in line with the neutron source, absorber, and first detector. Attenuation in it is caused by both inelastic and elastic scattering. By this arrangement the ratio of inelastic to total cross section can be determined directly in one experiment. The nuclear radii as calculated from the observed cross section, using the theory of the transparent nucleus, vary as 1.38 x 10(exp-13) A(exp(1/3)) cm. In this energy range the ratios of the inelastic to total cross sections are all less than one-half.
Handbook of Nuclear Engineering
Author: Dan Gabriel CacuciPublisher: Springer Science & Business Media
ISBN: 0387981306
Category : Science
Languages : en
Pages : 3701
Book Description
This is an authoritative compilation of information regarding methods and data used in all phases of nuclear engineering. Addressing nuclear engineers and scientists at all levels, this book provides a condensed reference on nuclear engineering since 1958.
Measurement of Cross Sections for Alpha-induced Reactions on 197Au and Thick-target Yields for the ((alpha), [gamma] Process on 64Zn and 63Cu
![Measurement of Cross Sections for Alpha-induced Reactions on 197Au and Thick-target Yields for the ((alpha), [gamma] Process on 64Zn and 63Cu PDF](https://books.google.com/books/content/images/frontcover/5o6bAQAACAAJ?fife=w80-h100)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 19
Book Description
We have measured the cross sections for the 197Au([alpha], [gamma])2°1Tl and 197Au([alpha],2n)199Tl reactions in the 17.9- to 23.9-MeV energy range, and 197Au([alpha], n)2°°Tl reaction in the 13.4- to 23.9-MeV energy range using an activation technique. Thick-target yields for the 64Zn([alpha], [gamma])68Ge (7- to 14-MeV) and 63Cu([alpha], [gamma])67Ga (7-MeV) reactions were measured. For all measurements, natural elements were bombarded with He beams from the 88'' Cyclotron at the Lawrence Berkeley National Laboratory (LBNL). Irradiated samples were counted using a g-spectrometry system at LBNL's Low Background Facility. Measured 197Au([alpha], [gamma])2°1Tl cross-sections were compared with the NON-SMOKER theoretical values. The thick-target yields for the 64Zn([alpha], [gamma])68Ge and 63Cu([alpha], [gamma])67Ga reactions are also compared with the theoretical yield, calculated numerically using the energy dependent NON-SMOKER cross section data. In both cases, measured values are found to follow a trend of overlapping the predicted value near the alpha nucleus barrier height and fall below with a slowly widening difference between them in the sub barrier energy points.
Neutron Cross Sections Between 14.4 and 18.2 MeV for the Reactions 39K(n,2n)38gK, 41K(n, P)41Ar and 41K(n, [alpha])38Cl
![Neutron Cross Sections Between 14.4 and 18.2 MeV for the Reactions 39K(n,2n)38gK, 41K(n, P)41Ar and 41K(n, [alpha])38Cl PDF](https://books.google.com/books/content/images/frontcover/_U56NwAACAAJ?fife=w80-h100)
Author: Yuh-Jiun MiiPublisher:
ISBN:
Category : Neutrons
Languages : en
Pages : 108
Book Description